[ 2 6 3 ] 
Thefe clyfters did not remove the loofenefs, though 
there was often a greater interval than ufual betwixt 
the evacuations, after the injection of them. The 
patient never complained of any uneafy diftention of 
the belly from the air thrown up, which, indeed, is 
not to be wondered at, confidering how readily this 
kind of air is abforbed by aqueous and other fluids, 
for which fufficient time was given, by the gradual 
manner of injecting it. Both thofe patients recovered, 
though the ufe of fixed air did not produce a crifis 
before the period on which fuch fevers ufually ter- 
minate, They had neither of them the opportunity 
of drinking iuch wine as Mr. Lightbowne took after 
the ufe of fixed air was entered upon ; and this, pro- 
bably, was fome difadvantage to them. 
I find the methods of procuring fixed air, and im- 
pregnating water with it, which you have publifhed, 
are preferable to thofe I made ufe of in Mr. Light- 
bo wne’s. cafe. 
The flexible tube ufed for conveying the fume of 
tobacco into the inteflines, I find to be a very con- 
venient inflrument in this cafe, by the method be- 
fore-mentioned (only adding water to the chalk, be- 
fore the oil of vitriol is in (tilled, as you direct) : the 
injection of air may be continued at pleafure, without 
any other inconvenience to the patient, than what 
may arife from bis continuing in one pofition during 
the operation, which fcarcely deferves to be men- 
tioned, or from the continuance of the clyfter-pipe 
within the anus, which is but trifling, if it be not 
fhaken much, or puflied again it the re&um. 
When I Laid in my letter, that fixed air appeared 
to be the greater]: corrector of putrefaction hitherto 
L 1 4 known. 
